Bboobee stove and ventilating hovee



June 18, 1929. R. o. PENCE BROODER STOVE AND VENTILATING ROVER Filed May 24, 1927 2 Sheets-Sheet 2 Patented June 18, 1929.

ROSCO O. FENCE, 0F STERLING, KANSAS.

IBBOODER STOVE AND VENTILATIN G ROVER.

Application filed May 24,

This invention relates to brooder stoves of the type illustrated in my pending application for patent, Serial N 0. 121,729 filed July 10, 1926 and the general object of the present invention is to secure certain improvements upon the brooder stove shown in this application.

One of the objects is to so construct the check draft damper in the smoke flue that a hover may be removed from the stove or lifted above this check draft damper without obstruction.

A further object is to provide a construction of this character having a ventilating flue which extends down into the space enclosed by the hover so as to remove foul odors from within the hover and permit the circulation of fresh air.

Another object is to provide thermostatically operated means for controlling the draft damper of the stove, the check draft damper and the inletopening of the ventilator.

Other objects have to do with the details of construction and arrangement of parts as will appear more fully hereinafter.

My invention is illustrated in the accompanying drawings, wherein Figure 1 is a vertical sectional view of a brooder stove constructed in accordance with my invention;

. Figure 2 is a top plan view thereof;

Figure 8 is a fragmentary perspective view showing the thermostats, the lower end of the ventilating flue and the draft damper;

Figure 4 is a fragmentary face view of the base of the stove showing the ash pit door.

It will be seen that I have illustrated a stove having a unitary fire pot and ash pit designated 10. The ash pit and the lower portion of the fire pot are many sided in cross section as shown in Figure 1 but the wall 12 of the combined ash pit and fire pot merges into a transversely circular portion 13 which at its upper end has an outwardly extending flange 14 formed with an upwardly extending rim 15. 16 designates a magazine which is circular in cross section, this magazine having its wall extended downward to a level with the upper edge of the rim 15; Detachably resting upon the upper edge of the rim 15 is an annular wall which extends inward and detachably supports the magazine 16 and which defines a heat expansion chamber 17. The magazine is closed by a cover 18, which extends entirely across the magazine so that the entire interior of the 1927. Serial N0. 193,836.

magazine is open when the cover is removed. Extending upward parallel to the magazine and formed integral therewith is the smoke flue 19 which at its upper end may be provided with a thimble 20 whereby a smoke pipe may be continued upward from the stove. The heat expansion chamber for a portion of its length is closed at the bottom by a wall 2O as in my prior application. About seventy per cent of the length of the bottom of this expansion-chamber is open to permit the passage of products of combustion into the expansion chamber and about thirty percent is closed. I do not however, wish to be limited to these proportions. The expansion chamber opens into the flue 19 so that the products of combustion passing into the expansion chamber will circulate through the same and then pass upward into this flue.

Above the ash pit is disposed the fire pot formed of the portions 12 and 13 and any suitable grate 21 is disposed within this fire pot. I have shown a grate formed of oscillatable bars. Downwardly and inwardly ex tending plates 22 constitute the lower portions of the walls of the fire pot and are supported in any suitable manner upon the walls thereof and extend downward and inwardly toward the grate, the lower ends being preferably serrated. The ash pit door 23 is preferably hung upon outwardly projecting hooks 2 1, though I do not wish to be limited to this, and the ash pit is formed with an air inlet opening or draft opening 25 definedby outwardly projecting. walls. The inlet of air through this draft opening is controlled by a damper 26 pivoted on a transverse pintle 27 and the damper 26 is of such width below this pintle that it will overlap or extend beyond the lower wall of the draft opening 25 while the upper wall of the draft opening is extended downward as at 28 so that the damper Will close against this upper wall.

Mounted upon the outer wall of the smoke flue 19 is one section 29 of the ventilating flue. This section 29 extends upward nearly to the top of the smoke flue and there has an opening 30 into the smoke flue. Engaged with the outer wall of the Ventilating flue 29 at its lower end is the lower section 31 of the ventilating flue which opens into the upper section at 32. Thus this lower section is spaced out- Wardly from the wall of the fire pot and ash pit as shown in Figure 1. Swingingly mounted for inward movement upon the outer wall of the upper end of the smoke flue is a check draft damper 33 which extends downward and has its lower margin curved inward as at 34. Passing vertically downward through the section 29 of the ventilator is a controlling rod 35 which is operatively connected to the check draft damper 33 and passes down through the lower end wall 29 of'the ventilator section 29. This rod below the lower end of the section of the ventilator carries upon it an adjustable nut or collar 36 and the rod passes through the upper end of an angular link 37, this upper end being disposed just above this nut or collar 36. The lower angular end of this link 37 is operatively connected to the draft damper 26 as illustrated in Figure 3. Thus, in the upward movement of the rod 35, the collar 36 will be brought into engagement with the link 37 and will act to raise or open the draft damper and upon a descent of the rod 35, the draft damper will close by gravity.

Carried upon the rod 35 and coacting with the open lower end of the ventilator flue section 31 is a door or damper 38 which moves bodily with the rod 35, a lug 39 of this damper being supported between the two nuts 40 as shown in Figure 1. Mounted upon the wall of the fire pot or ash pit is a thermostat designated generally a1, this thermostat including two t iermostatic coils 42 having outwardly projecting arms 43 engaged with the rod 35. These coils 42 are protected by a housing 44: of any suitable construct-ion and the thermostat is located relatively close to the lower end of the stove and, of course,within the hover. As the heat within the hover increases the thermostat arms 43 will move downward against a stop or collar 15 and draw down ward upon the rod 35. This will cause the closing of the draft damper 26 and the opening of the ventilator damper 38 and also the gradual opening of the check draft damper 33, it being understood that as the draft damper is opened, the check draft will be closed or vice versa. 4

Mounted upon the wall of the magazine and formed so as to fit around the upper section 29 of the ventilating flue and movable up and down upon the magazine and ventilating flue is the hover 46 which extends downward and outward and which is formed to provide a dead air space 47 in the manner illustrated in my prior application. It will be seen that nothing projects outward of the upper section 29 of the ventilating flue except below this upper section so that the hover may be readily lifted, lowered, or taken off entirely from the stove by lifting it above the nipple 20.

' The operation of this stove will be obvious from what has gone before. By means of the mechanism which I have devised, the interior of the hover is perfectly ventilated and this ventilation is automatically controlled so that the chicks are never subjected to great heat or great cold, but are kept in a uniform temperature and at the same time foul odors removed and fresh air allowed to enter, thus keeping the chicks in the best environment during the hovering period. The fire pot is sufficiently high abovethe base of the stove so that the chicks will not come into contact with the fire pot, and the thermostat will be enclosed in wire netting (not shown) so that the chicks cannot interfere with its proper operation in any way. The stove is automatic in its action and requires but a minimum degree of attention except to remove ashes and replenish the magazine.

Except as defined in the claims, I do not wish to be limitedto the construction illustrated in Figure 1 wherein the magazine is detachably mounted upon the annular chamber 17 which in turn is detachably mounted upon the rim 15 as the heat expansion chamber might obviously be formed as part of the magazine or separate therefrom as desired. It will be understood that the smoke flue 19 extends down to the top of the expansion chamber and opens thereinto as shown in Fi ure 1.

I claim: a

1. A brooder stove of the character described in cluding an ash pit, a fire pot, a magazine discharging into the the pot, a smoke flue extending upward parallel to and against the wall of the magazine and communicating at its lower end with the fire pot, a ventilating flue extending downward parallel to the smoke flue and opening at its upper end into the smoke flue and at its lower end at a point adjacent the lower end of the stove, a draft damper controlling the passage of air to the fire box, a check draft damper mounted at the upper end of the smoke flue, the ventilating flue opening into the smoke fine at a point just below this check draft damper, a damper for controlling the passage of air upward through the ventilating flue, and thermostatic means for operating said dampers.

2. A brooder stove including a fire pot, an ash pit, a magazine mounted upon and discharging into the fire pot, a smoke flue extending upward parallel to the magazine and receiving products of combustion from the fire pot, the upper end of the smoke flue being formed with a check draft opening, a swinging damper controlling said opening, a ventilator section extending downward along the outer face of the smoke flue from a point below said check draft damper to a point below the lower end of the smoke flue, and having an opening at its upper end into the smoke flue, a damper at the lower end of the ventilator flue controlling the passage of air therethrough, a draft damper disposed below the fire pot, a thermostat and arod operatively connecting the thermostat to the draft damper, the ventilating flue damper and the check draft damper, and causing the opening of the ventilating and check draft dampers and the closing of the draft damper upon a movement of the rod in one direction and the reverse movement of the dampers upon a movement of the rod in the other direction.

3. A brooder stove including a fire pot, an ash pit, a magazine mounted upon and discharging into the fire pot, a smoke flue extending upward and parallel to the magazine and receiving products of combustion from the fire pot, the upper end of the smoke flue being formed with a check draft opening, a swinging damper controlling said opening, a ventilator section extending downward along the outer face of the smoke flue from a point below said check draft damper to a point below the lower end of the smoke flue, and having an opening at its upper end into the smoke flue, a lower ventilating flue section outwardly offset with relation to the first named section and opening at its upper end thcreinto, a damper at the lower end of the second named section, a draft damper disposed below the fire pot, and thermostatic means for controlling the ventilating damper, the check draft damper and the draft damper.

4. A brooder stove of the character described including a base formed to provide an ash pit and a fire pot above the ash pit, a mag azine detachably mounted upon the base and carrying a smoke flue, and a ventilating flue operat-ively supported by the magazine and movable therewith and extending below the same and open at its lower end and at its upper end opening into the smoke flue.

5. A brooder stove of the character described including a base formed to provide an ash pit and a fire pot above the ash pit, an annular chamber detachably mounted upon the base above the fire pot, a magazine detachably mounted upon said chamber and extending down through the same, a smoke flue carried by the magazine exterior thereto and opening into said chamber, and a ventilating flue operatively supported upon the outer wall of the smoke flue and extending below the same and open at its lower end and at its upper end opening into the upper portion of the smoke flue, the ventilating flue being removable with the smoke flue and the magazme.

6. A brooder stove of the character described including a base formed to provide an ash pit and a fire pot above the ash pit, an annular chamber detachably mounted upon the base above the fire pot, a magazine detachably mounted upon said chamber and extending down through the same, a smoke flue carried by the magazine exterior thereto and opening into said chamber, and a ventilatin flue operatively supported upon the outer wall of the smoke flue and extending below the same and open at its lower end and at its upper end opening into the upper portion of the smoke flue, the ventilating flue and smoke flue being removable with the magazine.

7. A brooder stove of the character described formed to provide an ash pit and a fire pot above the ash pit, an annular chamber mounted upon the base above the fire pot, a magazine mounted upon said chamber and extending down through the same and discharging into the fire pot and a flue opening into the annular chamber, the annular chamber having a bottom plate forming a bafiie and.

extending beneath the opening of the flue and closing the bottom of the annular chamber for a part of the extent of the annular chamber whereby a portion of the annular chamber will be open at its bottom and the remaining portion closed at its bottom.

In testimony whereof I hereunto afiix my signature.

ROSCO O. FENCE. 

